Update breaks graphical system when X/Wayland is on vt[1-6]

[Iain Lane]

The update of console-setup in artful-release that just happened triggered a bug-

the postinst calls `setupcon --force' if the foreground console is tty1-6. This is not safe any more given that gnome-shell runs on 2.

We can update this check to ask logind if the foreground console corresponds to a tty session, and only do setupcon --force if it does.

[Daniel van Vugt (vanvugt)]

Is this a serious problem? What's not safe?

We used to run Mir servers on arbitrary VTs that already had consoles on them and never had a problem. You get a GUI while the server is running and it returns to a tty upon exit.

[Iain Lane (laney)]

If you want to fix it, and it's possible to fix it, and setupcon --force didn't break things under Mir, feel free.

In the meantime, we'll avoid doing the thing that breaks systems.

[Amr Ibrahim (amribrahim1987)]

I guess the wrong bug number is referenced in the debdiff.

[Mathieu Trudel-Lapierre (cyphermox)]

Oops, I didn't notice the bug number was wrong in the debdiff; we'll just have to close this manually.

console-setup 1.166ubuntu1 was uploaded and built; please test to make sure it really does resolve the issue correctly (it seemed to here).

https://launchpad.net/ubuntu/+source/console-setup/1.166ubuntu1/+build/13286956

[Iain Lane (laney)]

No, that patch fixes both this bug and the other one. It's not wrong, but the upload should have closed this one too.

[Iain Lane (laney)]

(cyphermox, you tested that the patch does fix the problem for you, right?)

[Iain Lane (laney)]

Ok, I just built, upgraded and the bugs didn't happen for me. Phew. :-)

(FWIW, I got debconf prompts about selecting the layout, but maybe I broke my system somehow when developing these patches yesterday; you should test upgrades from zesty IMO.)